Players have two ways to increase their stamina which makes them run faster. First, you can press “shift” or the run icon if you’re on a mobile device. This will let you run at the default speed.
If you wish to run faster, go to the yard, and you’ll see treadmills. Stay on the treadmills for a couple minutes and you’ll run faster than simply using shift.
For Health:
If you want your punch powers to be increased, go to the yard and you’ll see the weights. Stay on the weights for a couple minutes, and your punch damage will be much stronger than without them.